Henry mathieson



; UNITED "STATES PATENT OFFICE HENRY MATHIESON, OF MILE END, COUNTY OF MIDDLESEX, ENGLAND.

METHOD OF TRANSFERRING'PRINTED DESIGNS FROM PAPER TO SHEETS 0F TIN, dc.

SPECIFICATION forming part of Letters Patent No. 278,030, dated May 22, 1883.

A pplication filed Junelii, 1882. (No specimens.) Patented in Germany March 4. 1892, No. 10,219; in Belgium March ,7, 1882. No. 57.274; in France March 8, 1882, No. 135,745; in England March 18, 1882, No. 1,322; in Austria April 2!, 1882, and in Canada April 25,

To all whom it may concern I Be it known that I, HENRY MATHmsoN; a citizen of London, residing at Mile End, in the county of Middlesex and Kingdom ot'Great Britain, haveinvented certain new and useful Improvements in the Method of Transferring Printed Designs from Paper or other Suitable Material to Sheets of Tin, Zinc, Brass, or other Metal; and I do hereby declare the followin g to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

, My invention relates to the improved method of transferring printed designs from paper or other suitable material to sheets of tin, zinc, brass, or other metal. In carrying the said invention into practice I provide a sheet of ordinary printing or writing paper of any required size, and I dip it inor coat it on both sides with a solution of sugar, water, gum, and glue. In compounding said solution I use halt'a pound of sugar, two ounces of glue, and one pound of gum to every gallon of water. The efiect of said solution is to cause the pa per to shrink and to take varnish so evenly and smoothly that no blisters, air-bubbles, or other defects are possible. Each sheet of pa-v per having been immersed in or coated with said solution, as is hereinbefore stated, is varnished with ordinary varnish on one side, and isthen hung up to dry for about six hours in the atmosphere of an ordinary room or loft. The paper'so treated does not expand when the printing thereon isbeing transferred to the metal plates. Heretofore, the lithograph- 'ic stone has had to be dried before an impression could be taken from it. By my invention the impression may be taken from a wet stone. The paper prepared and varnished as is hereinbefore stated is then applied to the lithographic stone, and is operated on by the printing-roller, and the designs or patterns are printed on said paper in the colors or colors which may have been used. When necessary I dry the colors almost immediately by sprinkling or dusting the paper with French chalk. The patterns or designs having been printed on the paper as is hereiuhefore described I use a, tinted varnish with which I coat the paper, thereby dispensin g with the necessity for varnishing the metal sheet or plate, and saving much time and labor, asthe operation of transferring to and varnishing the metal sheet or plate can be accomplished by steam power, whereas hereto fore the varnishing ot' the metal sheet or plate could be done by manual labor only. The paper prepared and printed on as is hereinbe' jfore described is then placed upon the sheet or plate of metal, which is deposited in an ordinary lithographic press provided with a metal bed heated to about 200 Fahrenheit. The paper thereupon adheres firmly to the metal sheet or plate, and is removed either by immersing the latter in cold water or by saturating the paper with cold water. By either means the paper can readily be removed from the metal sheet or plate, which retains the design complete and varnished.

. Having now described the nature of my said invention and the manner in which the same is to be carried into practice, I wish it to be understood that what I claim is-- l. The method of transferring printed designs from paper or other suitable material to sheets of metal, consisting in the following steps: first, coating the paper with the hereinbefore-describedsolution to enable the paper to take varnish evenly and without blisters;

then coating the paper on one side with ordinary varnish and drying the same; then applyingthe paper to a lithographic stone and printing the required design on it; then coating the paper with a suitable tinted varnish;

then placing the paper upon the metal sheet, which is deposited in an ordinary lithographic press, the bed of which is heated sufficiently to allow the two sheets to adhere, and finally rcmoving the paper from the metal sheet, substantially as set forth.

2. In the method of transferring printed designs from paper or other suitable material to sheets of tin, zinc, brass, or other metals, immersing or coating both sides of a sheet of printing'or writing paper with a solution of sugar, gum, glue, and water, in or about the proportions hereinbefore specified; then applying a coat of ordinary varnish on one side of the sheetand drying the same; then applying the paper to a lithographic stone and printing the design on it; then drying the colors by sprinkling the paper with French chalk; then 1 paper from the metal plate, which retains the :0 coating the surface thereof with a colored or design varnished and complete, substantially tinted varnish; then placing the paper upon as set forth.

a sheet of metal, which is deposited in an or- In testimony whereof I affix my signature in dinary lithographic press provided with a mepresence of two witnesses.

tallie bed heated sufficiently, so that the paper HENRY MATHIESON. may adhere firmly to the metal plate; finally Witnesses:

immersing the metal plate in or saturating the P. OHALLORAN,

paper sheet with cold Water and removing the WILLIAMDOWNIE. 

